1.1 本试验方法涵盖两个实验室程序，用于确定建筑施工中使用的弹性化学固化密封剂的挤出速率和使用寿命（或“适用期”）。 注1: 这些密封剂具有各种流变特性，从可浇灌液体到不粘附糊状物。单组分密封剂在打开容器时即可使用，其固化速率由其暴露的气候条件决定。多组分密封剂作为基础组分和单独包装的固化剂提供。 混合两部分后，密封剂准备好涂抹，立即开始固化。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 没有已知的ISO等效于该试验方法。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 通过该试验方法获得的结果只是测量在预定压力下通过已知孔口挤出已知体积密封剂所需的时间。 4.2 本试验方法不被视为治愈率的测量方法。

1.1 This test method covers two laboratory procedures for determining the extrusion rate and application life (or “pot life”) of elastomeric chemically curing sealants for use in building construction. Note 1: These sealants are supplied with various rheological properties ranging from pourable liquids to nonsagging pastes. Single-component sealants are supplied ready for use upon opening the container, and their rate of cure is determined by the climatic conditions to which they are exposed. Multicomponent sealants are supplied as a base component and a curing agent separately packaged. After mixing the two parts, the sealant is ready for application, and curing begins immediately. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only. 1.3 There is no known ISO equivalent to this test method. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 The results obtained by this test method are simply a measure of the time required to extrude a known volume of sealant through a known orifice under a predetermined pressure. 4.2 This test method is not considered a measure of cure rate.